Your
Apple MacBook Pro 13.3-inch Intel Core i5 2.3GHz (MC700LL/A) (Early 2011) can support up to 8GB of memory. For optimal
system performance install the maximum amount of memory in each memory socket, this system comes with standard amount of 1GB RAM. One
or more of the sockets in the system might be already filled with memory. Whenever you upgrade, you can either add memory to one of the open sockets and/or remove memory from a filled socket and replace it with a higher capacity memory module.
Select your Memory Upgrade for Apple MacBook Pro 13.3-inch Intel Core i5 2.3GHz (MC700LL/A) (Early 2011).